[rrd-users] rrdGraph help

2006-11-30 Thread Kant, D (Dave)
Hi, Sometimes my sensor goes offline and the RRD archives contain Unknown datapoints. I can set them to zero using CDEF statments. This results in large gaps in the graph. (See the first graph at http://tinyurl.com/ve6d8). Is there a way - similar to the second graph - to fill these gaps to indi

[rrd-users] Re: rrdGraph help

2006-11-30 Thread Simon Hobson
Kant, D (Dave) wrote: >Sometimes my sensor goes offline and the RRD archives contain >Unknown datapoints. >I can set them to zero using CDEF statments. This results in large gaps in >the graph. (See the first graph at http://tinyurl.com/ve6d8). > >Is there a way - similar to the second graph - to

[rrd-users] Re: [rrd] rrdGraph help

2006-11-30 Thread Tobias Oetiker
Hi Dave, you can do this by setting UNKNOWN values to INF, known values to UNKNOWN ... and then draw an AREA with this ... cheers tobi > Hi, > > Sometimes my sensor goes offline and the RRD archives contain Unknown > datapoints. > I can set them to zero using CDEF statments. This results in lar

[rrd-users] Re: CDEF of a CDEF

2006-11-30 Thread rich
Hi Dan and Tobi, Thanks for the quick response. I have been trying it (mainly trough the drraw.cgi frontend) and hadn't got it to work, hence the question. Now I know that it is defenitly possible, I will keep trying until I can get it to work. Thanks again. Rich > Short answer: Yes. > > Long a

[rrd-users] rrdtool without accurate time

2006-11-30 Thread Joel Lindsay
Hi, I have no clock on my embedded system so am having problem using rrdtool correctly. I can add a fake date and therefore enter info into the RRD but 2 problems exist. 1) A reboot changes the date back to the start and then can't add to the rrd database until time elapses past the last uptim

[rrd-users] Re: Announce RRDtool Performance Tester

2006-11-30 Thread Tobias Oetiker
Hi Johannes, Your system does not seem to experiance that 'performance death' others see ... figures with that much ram ... you may want to try the new version of the script I am attaching ... it tries harder to figure where the limits lie ... as comparisons go I guess we need to define some 'benc

[rrd-users] Re: rrdtool without accurate time

2006-11-30 Thread Alex van den Bogaerdt
On Thu, Nov 30, 2006 at 02:30:40PM -0800, Joel Lindsay wrote: [snip: no accurate time] > For the graph though, I would like my x-axis to show the last hour, day or > week but with relative times instead of absolute time, since the absolute > times stored in the database are not right anyway. A